<template>
  <div class="employees-container">
    <div class="app-container">
      <page-tools>
        <template #left>
          <span>总记录数: {{ total }} 条</span>
        </template>
        <template #right>
          <el-button type="warning" size="small">excel导入</el-button>
          <el-button type="danger" size="small" @click="exportToExcel">excel导出</el-button>
          <el-button type="primary" size="small" @click="showDialog=true">新增员工</el-button>
        </template>
      </page-tools>

      <el-card style="margin-top: 10px;">
        <el-table border :data="list" :default-sort="{ prop: 'timeOfEntry', order: 'descending' }">
          <el-table-column label="序号" type="index" />
          <el-table-column label="姓名" prop="username" />
          <el-table-column label="用户头像">
            <template #default="{row}">
              <img :src="row.staffPhoto" alt="" style="width:100%">
            </template>
          </el-table-column>
          <el-table-column label="工号" prop="workNumber" sortable />
          <el-table-column label="聘用形式">
            <template #default="{row}">
              {{ formHireType(row.formOfEmployment) }}
            </template>
          </el-table-column>
          <el-table-column label="部门" prop="departmentName" />
          <el-table-column sortable label="入职时间" prop="timeOfEntry" />
          <!-- <el-table-column label="账户状态" /> -->
          <el-table-column label="操作" width="280">
            <template #default="{row}">
              <!--
                方式一: 查询参数传参  @click="$router.push(`/employees/detail?id=${row.id}`)"
                <el-button
                type="text"
                size="small"
                @click="$router.push(`/employees/detail?id=${row.id}`)"
              >查看</el-button> -->
              <!--方式二: 路径传参  @click="$router.push(`/employees/detail/${row.id}`)" -->
              <el-button
                type="text"
                size="small"
                @click="$router.push(`/employees/detail/${row.id}`)"
              >查看</el-button>
              <el-button
                type="text"
                size="small"
                @click="hAssignRoles(row.id)"
              >分配角色</el-button>
              <el-button type="text" size="small" @click="hDel(row.id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
        <el-row
          type="flex"
          justify="center"
          align="middle"
          style="height: 60px"
        >
          <!-- 分页组件 -->
          <el-pagination
            :current-page="page"
            :page-sizes="[2,5,10,20]"
            :page-size="size"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total"
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
          />
        </el-row>
      </el-card>

      <!-- 新增弹层 -->
      <el-dialog title="新增员工" :visible.sync="showDialog" @close="hClose">
        <addOrEdit ref="myEmp" @success="hSuccess" />
      </el-dialog>
      <!-- 分配角色的弹层 -->
      <el-dialog title="分配角色" :visible.sync="assignshowDialog">
        <assignRole
          :user-id="userId"
          @success="assignshowDialog=false"
        />
      </el-dialog>
    </div>
  </div>
</template>
<script>
import addOrEdit from './employDialog.vue'
import assignRole from './assignRole.vue'
import { getEmployeeList, delEmployee } from '@/api/employees'
import employeesEnum from '@/constant/employees'

// console.log(employeesEnum.hireType, 'employeesEnum.hireType')
// // [{ id: 1, value: '正式' }, { id: 2, value: '非正式' }]----->{ 1: 正式,2: 非正式}
// const hireType = {}
// employeesEnum.hireType.forEach(item => {
//   hireType[item.id] = item.value
// })
// console.log(hireType, 'hireType')

// reduce完成这个功能
const hireType = employeesEnum.hireType.reduce((acc, item) => {
  // item => { id: 1, value: 正式}
  acc[item.id] = item.value
  return acc
}, {})

export default {
  components: {
    addOrEdit,
    assignRole
  },
  data() {
    return {
      assignshowDialog: false,
      showDialog: false,
      list: [],
      page: 1, // 页码值
      size: 5, // 每页显示的条数
      total: 0,
      userId: ''
    }
  },
  created() {
    this.loadEmployeeList()
  },
  methods: {
    hAssignRoles(id) {
      this.userId = id
      this.assignshowDialog = true
    },
    exportToExcel() {
      // 1.发生请求获取需要导出的数据
      // 页面渲染的时候已经发送请求将数据保存到this.list中

      // 2.将数据格式成excel需要的格式
      const { tHeader, result } = this.formatToExcel(this.list)
      console.log(tHeader, 'tHeader')
      console.log(result, 'result')
      // header = []
      // data = [[] , []]
      // 3.调用admin提供的函数将数据写入到excel
      import('@/vendor/Export2Excel').then(excel => {
        // 2.格式化数据

        // export_json_to_excel将格式化的数据写入到excel
        excel.export_json_to_excel({
          header: tHeader,
          data: result,
          filename: '', // 设置文件的名称
          autoWidth: true, // 宽度自适应
          bookType: 'xlsx' // 导出的文件格式
        })
      })
    },
    formatToExcel(list) {
      //    中引文的映射对象
      const mapInfo = {
        'id': '编号',
        'password': '密码',
        'mobile': '手机号',
        'username': '姓名',
        'timeOfEntry': '入职日期',
        'formOfEmployment': '聘用形式',
        'correctionTime': '转正日期',
        'workNumber': '工号',
        'departmentName': '部门',
        'staffPhoto': '头像地址'
      }

      // tHeader = ['编号','密码','手机号','姓名','入职日期',.......]
      // 1 生成表头
      // tHeader  ---> ['转正日期', '部门', '聘用形式', '编号', '手机号', '密码', '头像地址', '入职日期', '姓名', '工号']
      const one = list[0]
      if (!one) return
      const tHeader = Object.keys(one).map(enKey => {
        return mapInfo[enKey]
      })
      console.log(tHeader, 'tHeader')
      // 2 生成表的内容data
      const result = list.map(item => {
        return Object.values(item)
      })
      return { tHeader, result }
    },
    hDel(id) {
      this.$confirm('你确认删除吗').then(async() => {
        const res = await delEmployee(id)
        if (this.list.length === 1) {
          this.page--
          if (this.list.length <= 0) {
            this.page = 1
          }
        }
        if (res.code === 10000) {
          this.loadEmployeeList()
        }
      }).catch(error => console.log(error))
    },
    hClose() {
      // 重置表单
      this.$refs.myEmp.resetForm()
    },
    hSuccess() {
      // 新增成功 关闭弹层 重新刷新页面
      this.total++
      const maxPage = Math.ceil(this.total / this.size)
      //  将当前的页码值切换到最后一页
      this.page = maxPage
      this.showDialog = false
      this.loadEmployeeList()
    },
    // 格式化聘用形式的数据
    formHireType(value) {
      // value有可能是1 || 2
      // const obj = employeesEnum.hireType.find(item => item.id === value)
      // return obj ? obj.value : '未知'
      return hireType[value] || '未知'
    },
    handleSizeChange(val) {
      console.log(`每页 ${val} 条`)
      this.page = 1
      this.size = val
      this.loadEmployeeList()
    },
    handleCurrentChange(val) {
      console.log(`当前页: ${val}`)
      this.page = val
      this.loadEmployeeList()
    },
    async loadEmployeeList() {
      try {
        const res = await getEmployeeList(this.page, this.size)
        console.log(res, 'res')
        this.list = res.data.rows
        this.total = res.data.total
      } catch (error) {
        console.log(error)
      }
    }
  }
}
</script>
